From: David Lechner <david@lechnology.com>
To: Sekhar Nori <nsekhar@ti.com>,
linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Kevin Hilman <khilman@kernel.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Adam Ford <aford173@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 02/27] clk: davinci: da850-pll: change PLL0 to CLK_OF_DECLARE
Date: Tue, 1 May 2018 20:46:09 -0500 [thread overview]
Message-ID: <f92d3a7c-3a1f-d267-6424-af1f38badd76@lechnology.com> (raw)
In-Reply-To: <fe791ecf-ebd0-4e9e-722e-bfa07acc4ea2@ti.com>
On 05/01/2018 08:46 AM, Sekhar Nori wrote:
> On Friday 27 April 2018 05:47 AM, David Lechner wrote:
>> PLL0 on davinci/da850-type device needs to be registered early in boot
>> because it is needed for clocksource/clockevent. Change the driver
>> to use CLK_OF_DECLARE for this special case.
>>
>> Signed-off-by: David Lechner <david@lechnology.com>
>> ---
>>
>> v9 changes:
>> - new patch in v9
>>
>>
>> drivers/clk/davinci/pll-da850.c | 26 ++++++++++++++++++++++----
>> drivers/clk/davinci/pll.c | 4 +++-
>> drivers/clk/davinci/pll.h | 2 +-
>> 3 files changed, 26 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/clk/davinci/pll-da850.c b/drivers/clk/davinci/pll-da850.c
>> index 00a6ece7b524..743527de1da2 100644
>> --- a/drivers/clk/davinci/pll-da850.c
>> +++ b/drivers/clk/davinci/pll-da850.c
>> @@ -12,6 +12,8 @@
>> #include <linux/init.h>
>> #include <linux/kernel.h>
>> #include <linux/mfd/da8xx-cfgchip.h>
>> +#include <linux/mfd/syscon.h>
>> +#include <linux/of_address.h>
>> #include <linux/of.h>
>> #include <linux/types.h>
>>
>> @@ -135,11 +137,27 @@ static const struct davinci_pll_sysclk_info *da850_pll0_sysclk_info[] = {
>> NULL
>> };
>>
>> -int of_da850_pll0_init(struct device *dev, void __iomem *base, struct regmap *cfgchip)
>> +void of_da850_pll0_init(struct device_node *node)
>> {
>> - return of_davinci_pll_init(dev, dev->of_node, &da850_pll0_info,
>> - &da850_pll0_obsclk_info,
>> - da850_pll0_sysclk_info, 7, base, cfgchip);
>> + void __iomem *base;
>> + struct regmap *cfgchip;
>> +
>> + base = of_iomap(node, 0);
>> + if (!base) {
>> + pr_err("%s: ioremap failed\n", __func__);
>> + return;
>> + }
>> +
>> + cfgchip = syscon_regmap_lookup_by_compatible("ti,da830-cfgchip");
>> + if (IS_ERR(cfgchip)) {
>> + pr_warn("%s: failed to get cfgchip (%ld)\n", __func__,
>> + PTR_ERR(cfgchip));
>> + cfgchip = NULL;
>> + }
>
> Is this error handling for cfgchip needed here considering
> davinci_pll_clk_register() already checks and warns.
Ah, good point. I'll clean this up.
next prev parent reply other threads:[~2018-05-02 1:46 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-27 0:17 [PATCH v9 00/27] ARM: davinci: convert to common clock framework David Lechner
2018-04-27 0:17 ` [PATCH v9 01/27] clk: davinci: pll: allow dev == NULL David Lechner
2018-05-01 13:27 ` Sekhar Nori
2018-05-02 1:44 ` David Lechner
2018-04-27 0:17 ` [PATCH v9 02/27] clk: davinci: da850-pll: change PLL0 to CLK_OF_DECLARE David Lechner
2018-05-01 13:46 ` Sekhar Nori
2018-05-02 1:46 ` David Lechner [this message]
2018-04-27 0:17 ` [PATCH v9 03/27] clk: davinci: psc: allow for dev == NULL David Lechner
2018-05-01 14:02 ` Sekhar Nori
2018-05-02 1:49 ` David Lechner
2018-05-02 15:08 ` Sekhar Nori
2018-04-27 0:17 ` [PATCH v9 04/27] ARM: davinci: pass clock as parameter to davinci_timer_init() David Lechner
2018-05-01 14:09 ` Sekhar Nori
2018-04-27 0:17 ` [PATCH v9 05/27] ARM: davinci: da830: add new clock init using common clock framework David Lechner
2018-05-01 14:13 ` Sekhar Nori
2018-04-27 0:17 ` [PATCH v9 06/27] ARM: davinci: da850: " David Lechner
2018-05-01 14:17 ` Sekhar Nori
2018-04-27 0:17 ` [PATCH v9 07/27] ARM: davinci: dm355: " David Lechner
2018-05-03 15:34 ` Sekhar Nori
2018-05-03 15:44 ` David Lechner
2018-05-04 10:01 ` Sekhar Nori
2018-05-04 14:26 ` David Lechner
2018-04-27 0:17 ` [PATCH v9 08/27] ARM: davinci: dm365: " David Lechner
2018-04-27 0:17 ` [PATCH v9 09/27] ARM: davinci: dm644x: " David Lechner
2018-05-03 13:18 ` Sekhar Nori
2018-04-27 0:17 ` [PATCH v9 10/27] ARM: davinci: dm646x: " David Lechner
2018-04-27 0:17 ` [PATCH v9 11/27] ARM: davinci: da8xx: add new USB PHY " David Lechner
2018-04-27 0:17 ` [PATCH v9 12/27] ARM: davinci: da8xx: add new sata_refclk " David Lechner
2018-04-27 0:17 ` [PATCH v9 13/27] ARM: davinci: remove CONFIG_DAVINCI_RESET_CLOCKS David Lechner
2018-04-27 0:17 ` [PATCH v9 14/27] ARM: davinci_all_defconfig: " David Lechner
2018-04-27 0:17 ` [PATCH v9 15/27] ARM: davinci: switch to common clock framework David Lechner
2018-04-27 0:17 ` [PATCH v9 16/27] ARM: davinci: da830: Remove legacy clock init David Lechner
2018-04-27 0:17 ` [PATCH v9 17/27] ARM: davinci: da850: " David Lechner
2018-04-27 0:17 ` [PATCH v9 18/27] ARM: davinci: dm355: " David Lechner
2018-04-27 0:17 ` [PATCH v9 19/27] ARM: davinci: dm365: " David Lechner
2018-04-27 0:17 ` [PATCH v9 20/27] ARM: davinci: dm644x: " David Lechner
2018-04-27 0:17 ` [PATCH v9 21/27] ARM: davinci: dm646x: " David Lechner
2018-04-27 0:17 ` [PATCH v9 22/27] ARM: davinci: da8xx: Remove legacy USB and SATA " David Lechner
2018-04-27 0:17 ` [PATCH v9 23/27] ARM: davinci: remove legacy clocks David Lechner
2018-04-27 0:17 ` [PATCH v9 24/27] dt-bindings: timer: new bindings for TI DaVinci timer David Lechner
2018-04-27 14:05 ` Rob Herring
2018-05-02 1:52 ` David Lechner
2018-05-02 5:03 ` Sekhar Nori
2018-04-27 0:17 ` [PATCH v9 25/27] ARM: davinci: add device tree support to timer David Lechner
2018-04-27 0:17 ` [PATCH v9 26/27] ARM: davinci: da8xx-dt: switch to device tree clocks David Lechner
2018-04-27 9:53 ` Bartosz Golaszewski
2018-04-27 0:17 ` [PATCH v9 27/27] ARM: dts: da850: Add clocks David Lechner
2018-04-27 12:04 ` [PATCH v9 00/27] ARM: davinci: convert to common clock framework Bartosz Golaszewski
2018-04-30 20:35 ` Bartosz Golaszewski
2018-05-01 14:45 ` Sekhar Nori
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